About: http://webisa.webdatacommons.org/310539292

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The compressive strength of the soft materials may also be increased by fillers such as e.g. silicon dioxide, aluminum oxide, carbon or graphite in powder form.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com